Cultivator.



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No. 857,162. PATENTED JUNE 18, 1907.

P. E. DAVIS.

GULTIVATOR.

APPLICATION FILED nulls, 1904.

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No. 857,162. PATENTED JUNE'18, 190v.

P. E. DAVIS.

GULTIVATOR.

APPLICATION FILED JAN. 18, 1904.

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CULTIVATOR.

7 Specification of Letters Patent.

Patented June 18,1907.

Application filed January 18, 1904. Serial No. 189,496.

To all whom it may concern; i

Be it known that I, FRANK E. DAVIS, a resident-of the city of La Crosse,in the county of La Grosse and State of Wisconsin, have invented certainnew and useful Improvements in Cultivators, of which the following is afull, clear, and exact description.

One object of the present invention is to provide a foot-lift for one ormore of the shovel-supports or drag-bars, and whereby said beams or barscan be raised out of the ground and secured in elevated position.

The invention further designs to provide an improvedspring-lift for ashovel-beam or beams.

A still further object of the invention is to provide a simple andimproved construction of operating-mechanism for the shovel-beams bywhich a plurality of beams can be con jointly or individually shifted.

The invention also designs to provide im-..

proved operating means whereby the operator can liftthe shovels eitherby his foot or by hand and whereby the shovels will be secured inelevated position.

Lastly the invention designs to provide an. improved cultivator, inwhich the operating lever or levers for the drag-bars are located to therear of the axle in convenient osition for the operator withoutemploying ong levers.

The invention consists in the several novel features hereinafter setforth and more par ticularly defined by claim at the conclusion hereof.

In the drawings: Figure 1 is a plan of a cultivator embodying theinvention, one set of drag-bars being broken away. Fig. 2 is a centrallongitudinal section. Fig. 3 is a transverse section on line 3-3 ofFig. 1. Fig. 4 is a detail section taken on line 44 of Fig. 1.

The cultivator shown is of that ty e commonly known as a two-row cutivator, and comprises carrying-wheels 10, journaled on. arch axles 11,having their upper terminals adjustably secured by co ars 12 in bracketsor socket-plates 1.3 whereto the frame is secured. The frame comprises,a front cross-bar 14, a rear cross-bar 15, sidebars 16, and a air oflongitudinal-bars 17 arranged near tlie center of the frame, and havingtheir rear ends secured together by a cross-strip 18. An operators seat19, is sustained in proper relation by seat-bars 20 secured to bars 17at 21.

Thecultivator comprises a pair or set of shovel-gangs at each side, eachpair being arranged to cultivate a row. The construction of the sets andoperating-mechanism being similar, a description of one suffices forboth. Each gang of shovels 22 is secured in suitable manner to adrag-bar or shovelbeam 23 having a front terminal swiveled andadjustably secured by a collar 24, in a sleeve 25, which is pivotallysecured by a bolt 26 in a bracket 27 bolted to front-bar 14 of theframe. Such means sustain the drag bars in manner free to be swungvertically and laterally as well understood in the art.

The mechanism for raising and lowering the inner drag-bar of a set,comprises a handlever 28, a connector 29, and a differential crankloosely mounted on a shaft 34, and hava ing an arm 31 connected to thefront end of connector 29 and an arm 32. The operating mechanism for theouter drag-bar of each set, comprises a hand-lever 36, a connector 37,an arm 38 rigidly secured to rock-shaft 34, and a differentialcrank-arm39 secured to the outer end of shaft 34. Cranlcarms 32 and 39 arerespectively and flexibly connected to the inner and outer drag-bars, bya suspension-bar 33 and a chain 35. Shaft 34 is ournaled in a bracket 40secured to frame-bar 18, and a bracket 41 secured to a frame-bar 18.

Each of the hand-levers 28, 36 is held in assigned position with respectto a segmentalrack 42, by a springpressed locking-bolt 43 adapted tointerlock with the teeth of said rack and connected to a fin er-lever44. Rack 42 is rigidly secured to a raft 45 journaled in abearing-sleeve 46 bolted to framebar 18 as at 46. A foot-lever ortreadle 47 is secured to the inner end of shaft 45, and thereby theshaft can be rocked to swing the rack. Hand-levers 2836 are eachpivotally sustained on shaft 45, and free to swing independently of saidshaft and each other. A spring 48 has one of its ends secured to theframe as at 49, and its other end connected to a bent link 50 which ispivotally connected at 52 to an arm 51 of footlever 47 The relativearrangement of spring-hitch 49, shaft 45 which forms the lever-fulcrum,and pivot-connection 52 is such, that when the drag-bars are in workingposition the force of spring 48 will be applied to hold foot-lever 47 inelevated position (see full lines Fig. 2) and against a stop 53. Thesepivotal connections are arranged to cross the in position.

dead-center as the drag-bars are lowered and to relieve the shovel-beamsof the force of the lift-spring while the shovels are in work- As soonas the foot-lever is shifted beneath the dead-center the spring willbecome effective and apply its force to raise the drag-bars.

When the shovel-beams are in elevated or riding position difli'erentialcrank-arms 32, 39 are positioned to apply the weight of the beams, nearthe vertical plane of shaft 34, and the force of spring 48 will then besufficient to retain the shovel-beams and operating mechanism inassigned position.

The operation is as follows: Assuming the parts to be in position seenin dotted lines Fig. 2, the operator can vconjointly lower theshovel-gangs of a set, by moving (without releasing the lock) either ofthe hand-levers 28, 36, forwardly. Such forward shift will swing rack 42forwardly and simultaneously shift both of the drag-bar connections, andalso shift foot-lever 47 into position seen in full lines Fig. 2. Spring48' will then hold the foot-lever against stop 53, and hold theoperating mechanism in assigned position. If relative adjustment of theshovel-gangs is desired, or if independent shift of either gang isdesired, the operator can effect independent adjustment or shift byreleasing the corresponding hand-lever from rack 42, which willdisconnect the shovel-gang from the sprin uickIy and conjointly liftedby depression of t e foot-lever, which will swing the rack and shiftboth of the drag-bar connections and elevate both gangs of a set, or thegangs can be conjointly lifted by rearward shift of either of thehand-levers, or if the shovels are working in hard soil, the operatorcan use both the foot-lever and one of the hand levers simultaneously.

The invention possesses several important advantages. The improvedfoot-lift makes it possible to conveniently lift the shovelgangs intosecured elevated position without use of the operators hands. The gangscan be raised either by hand or foot or the hand lever can be usedconjointly with the footlever. By employing a single rack for bothhandlevers, the levers are brought into close relation so the operatorcan readily determine the relative position of the shovelgangs, from therelative position of the handlevers, and this construction is one whichcan be produced at a low cost. Furthermore such close relation bringsboth hand-levers within convenient reach of the operator.

It will be observed that levers 28, 36, 47 are fulcrumed at the rear endof supporting-bars 17 which project rearwardly beyond the axle, and inproximity to the drivers seat which-is located so thedriver can easilyretain his feet in stirrups secured to the drag-bars and guide anddepress the shovels. This '-held rack. The gangs of a set can beconstruction makes it possible to employ rather short levers which canbe conveniently operated and have a range of travel in convenient reachof an operator at the rear of the cultivator.

I/Vhile the invention is shown as embodied in a two-row cultivator, itis manifest that certain features can be employed to advantage in asingle-row cultivator. The invention is not to be understood asrestricted to the particular construction set forth, and the severalfeatures thereof may be severally adopted, and may be modified, withoutdeparting from the spirit and scope of the invention.

Having thus described the invention, what I claim as new and desire tosecure by Letters Patent, is:

1. In a cultivator the combination of a frame, a drag-bar swiveled atits front end so that it can be swung laterally and vertically,

a foot-lever, a connection between said foot lever and said drag-bar,automatically operating means for holding the drag-bar in liftedposition when shifted. by the foot-lever and means whereby the drag-barcan be lowered when it has been raised by the foot-lever.

2. In a cultivator the combination of a frame, a drag bar swiveled atits front end so that it can be swung laterally and vertically, afoot-lever, a connection between said footlever and said dragbar, aspring whereby the drag-bar will be held in lifted position when shiftedby the foot-lever and means whereby the drag-bar can be lowered when ithas been raised by the foot-lever.

3. In a cultivator the combination of a frame, a drag-bar swiveled atits front end so that it can be swung laterally and vertically, afoot-lever, a connection between said foot lever and the drag-bar, aspring applied to lift the dragbar when the foot-lever is operated, andto hold the foot-lever in position when the drag-bar is lowered andmeans whereby the drag-bar can be lowered and for restoring thefoot-lever into operative position when the drag-bar is lowered.

4. In a cultivator, the combination of a frame, drag-bar swiveled at itsfront end so it can be swung laterally and vertically, a

pivoted foot-lever for raising the drag-bar, a

spect to the lever fulcrum, to travel across the dead center anddifferentially apply said spring to hold the lever in either of itsalternative positions and means whereby the drag-bar can be lowered andfor shifting the foot-lever into operative position.

6. I11 a cultivator, the combination of a frame, drag-bar swiveled atits front end so it can be swung laterally and vertically, a foot-lever,and an operative connection between said foot-lever and said drag-barcomprising a hand-lever having an adjustable connection with saidfoot-lever.

7. In a cultivator the combination of a frame, a drag-bar swiveled atits front end so that it can be swung laterally and vertically, afootlever, a hand-lever, both of said levers being operatively connectedto the drag-bar, and automatically operating means whereby the drag-barwill be secured in lifted position when the drag-bar is shifted byeither of said levers.

8. In a cultivator the combination of a frame, adrag-bar swiveled at itsfront end so that it can be swung laterally and vertically,

a foot-lever, a hand-lever, both of said levers being operativelyconnected to the drag-bar,

and a spring whereby the drag-bar will be se cured in lifted positionwhen the drag-bar is shifted by either of said levers. I

9. In a cultivator, the combination of a frame, drag-bar swiveled at itsfront end so it can be swung laterally and vertically, a foot-lever, ahand-lever, both of said levers being operatively connected to saiddragbar, and a spring alternately applied, to lift said drag-bar whensaid drag-bar is raised by either of said levers, and to hold saidlevers in position when the drag-bar is in its lowered position.

10. In a cultivator, the combination of a frame, drag-bar swiveled atits front end so it can be swung laterally and vertically, a foot-lever,a rack shiftable by said foot-lever, a hand-lever adjustably secured tosaid rack, and a connection between said hand-lever and said drag-bar.

- 11. In a cultivator, the combination of a frame, drag-bar swiveled atits front end so it can be swung laterally and vertically, a foot-lever,a rack shiftable by said-foot-lever, a hand-lever adjustably secured tosaid rack,

a connection between said hand-lever and- 1.2. In a cultivator, thecombination of a.

frame, drag-bar swiveled at its front end so it can be swung laterallyand vertically, a

foot-lever, a rack shiftable by said foot-lever,

a hand-lever adjustably secured to said rack, a connection between saidhand-lever and said drag-bar, and a spring applied to lift saiddrag-bar.

13. In a cultivator, the combination of a frame, a drag-bar swiveled atits front end so it can be swung laterally and vertically, a foot-lever,a rack shift'able by said foot-lever, a hand-lever adjustably secured tosaid rack, a connection between said hand-lever and said. drag-bar, anda spring applied to alternately lift said drag-bar and to hold said rackand levers when the drag-bar is in lowered position.

14. In a cultivator, the combination of a frame, a pair of shovel-beams,a rack, and

two hand-levers, each connected to one of said beams, and each of whichis interlocked with said rack, said rack being movably sustained soshift thereof will effect conjoint shift of both of said beams.

15. In a. cultivator, the combination of a frame, a pair ofshovel-beams, a rack, two.

of both of said beams, and a spring alternately applied to shift saidrack to lift the beams, and to hold said rack in position when-the beamsare in working position.

17. In a cultivator, the combination of a frame, a pair of shovel-beams,a foot-lever, a connection whereby said foot-lever can effect conjointlift of both of said beams, said connections being adjustable to permitindependent shift of the'beams.

18. In a cultivator, the combination of a frame, a pair of shovel-beams,two handlevers, each having a connection with one of said beams, and afoot-lever having connection with both of said hand-levers, and wherebyconjoint shift of both of said hand-levers can be effected.

19. In a cultivator, the combination of a frame, a pair of shovel beams,two handlevers, each having a connection with one of saidbearns,locking-means for each of said levers, and a foot-lever havingconnection with both of said hand-levers and whereby conjoint shift ofboth of said hand-levers can be effected.

20. In a cultivator, the combination of a frame, a pair of shovel-beams,two handlevers, each having a connection with one of said beams, afoot-lever having connection with both of said hand-levers, and wherebyconjoint shift of both of said hand-levers can be effected, and a springapplied to conjointly lift both of the beams.

21. In a cultivator, the combination of a frame, a pair of shovel-beams,two handlevers each having a connection with one of said beams, amovably sustained rack wherewith both of said hand-levers areinterlocked, and a foot-lever shifting said rack and whereby conjointshift of both beams can be efiected.

. 22. In a cultivator, the combination of a frame, a pair ofshovel-beams, two handlevers, each having a connection with one of saidbeams, a movably sustained rack wherewith both of said hand-levers areinterlocked, a foot-lever for shifting said rack and whereby conjointshift of both beams can be effected, and a spring applied to conjointlylift the beams.

28. In a cultivator, the combination of a frame, a pair of shovelbeams,two hand-levers, each having a connection with one of said beams, apivotally sustained rack wherewith both of said hand-levers areinterlocked, a foot-lever for shifting said rack and whereby conjointshift of both beams can be effected, and a spring applied to alternatelylift the beams, and secure said rack and its connections in positionwhen the beams are in working position.

24. In a cultivator the combination of a frame, carrying wheels, adrag-bar swiveled at its front to swing laterally and vertically, alever-support extending rearwardly of the axle, a foot-lever pivoted inthe rear of the axle and sustained by said support in convenientposition with respect to the operators seat, a suspension device locatedforwardly of the axle, and a connection between the lever and thesuspension device.

25. In a cultivator the combination of a frame, carrying-wheels, adrag-bar pivoted at its front to swing laterally and vertically one ormore bars extending longitudinally of the frame, and near the center ofthe frame and extended rearwardly of the wheel-axle, a hand-leverpivoted in the rear of the axle and sustained by said bars in convenientposition with respect to the operators seat, locking means for the levera suspension device arranged forwardly of the wheel-axle and connectedto the drag-bar near the front end thereof, and a connection between thesuspension device, and the hand-lever.

26. In a cultivator the combination of a frame, carrying-wheels, adrag-bar swiveled at its front to swing laterally and vertically, alever-support extending rearwardly of the axle, a hand-lever sustainedby said support in the rear of the axle and in convenient position withrespect to the operators seat, and an operative connection between thedragbar and the lever comprising a crank arranged in front of the axleand connected to said lever, and a suspension device connected to thecrank and to the drag-bar.

27. I11 a cultivator the combination of a frame, a pair of dragbars, twohand-levers, a connection between one of the levers and one of thedrag-bars, comprising a pivotally sustained cross-shaft having a crankconnected with the drag-bar carried thereby, and a connection betweenthe other lever and the other drag-bar, comprising a crank pivotallysustained by said rod, and connected with the drag-bar carried thereby.

28. In a cultivator, the combination with a frame, a pair of drag-bars,two hand levers, a connection between one of the levers and one of saiddrag-bars, comprising a cross-shaft having a crank connection with thedrag-bar carried thereby, and a bar connecting said shaft and saidlever, and a connection between the other hand-lever and the otherdrag-bar, comprising a crank pivotally sustained by said cross-shaft,and a bar con necting said other lever and said crank.

29. In a cultivator the combination of a frame, carrying-wheels, adrag-bar swiveled at its front so it can be raised and lowered and movedlaterally, a foot-lever arranged rearwardly of the wheel-axle, ahand-lever pivoted rearwardly of the wheel-axle, supporting-means forsaid levers, an operative connection whereby the drag-bar can be liftedby either of said levers means for holding the levers in position tocause them to hold the drag-bar in lifted position.

30. In a cultivator the combination of a frame, carrying-wheels, adrag-bar swiveled at its front so it can be raised and lowered or movedlaterally, said frame "comprising a support extending rearwardly of theaxle, a foot-lever pivoted in the rear of the axle and sustained by saidsupport in convenient position with respect to the operators seat, andan operative connection between said lever and the drag-bar whereby thedrag-bar can be lifted, said connection comprising a handlever and asuspension device arranged in front of the axle.

31. In a cultivator the combination of a frame, carrying-wheels, a pairof drag-bars each swiveled at its front so it can be swung vertically orlaterally, said frame comprising a support extended rearwardly of thewheelaxle, a hand-lever for each drag-bar, a connection between each ofthe hand-levers and one of the drag-bars, and a foot-lever pivotallysustained in the rear of the axle in convenient position with respect tothe operators seat and connected to both of said handlevers and wherebyboth of the drag-bars can be operated.

FRANK E. DAVIS.

'Witnesses:

C. W. DIcKINsoN, J. F. Cnoss.

